Andrew's git - gitweb.git/blob

   1#include <winsock2.h>
   2#include <ws2tcpip.h>
   3
   4/*
   5 * things that are not available in header files
   6 */
   7
   8typedef int pid_t;
   9typedef int uid_t;
  10typedef int socklen_t;
  11#define hstrerror strerror
  12
  13#define S_IFLNK    0120000 /* Symbolic link */
  14#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  15#define S_ISSOCK(x) 0
  16
  17#define S_IRGRP 0
  18#define S_IWGRP 0
  19#define S_IXGRP 0
  20#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
  21#define S_IROTH 0
  22#define S_IWOTH 0
  23#define S_IXOTH 0
  24#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
  25
  26#define S_ISUID 0004000
  27#define S_ISGID 0002000
  28#define S_ISVTX 0001000
  29
  30#define WIFEXITED(x) 1
  31#define WIFSIGNALED(x) 0
  32#define WEXITSTATUS(x) ((x) & 0xff)
  33#define WTERMSIG(x) SIGTERM
  34
  35#ifndef EWOULDBLOCK
  36#define EWOULDBLOCK EAGAIN
  37#endif
  38#define SHUT_WR SD_SEND
  39
  40#define SIGHUP 1
  41#define SIGQUIT 3
  42#define SIGKILL 9
  43#define SIGPIPE 13
  44#define SIGALRM 14
  45#define SIGCHLD 17
  46
  47#define F_GETFD 1
  48#define F_SETFD 2
  49#define FD_CLOEXEC 0x1
  50
  51#ifndef EAFNOSUPPORT
  52#define EAFNOSUPPORT WSAEAFNOSUPPORT
  53#endif
  54#ifndef ECONNABORTED
  55#define ECONNABORTED WSAECONNABORTED
  56#endif
  57
  58struct passwd {
  59        char *pw_name;
  60        char *pw_gecos;
  61        char *pw_dir;
  62};
  63
  64typedef void (__cdecl *sig_handler_t)(int);
  65struct sigaction {
  66        sig_handler_t sa_handler;
  67        unsigned sa_flags;
  68};
  69#define sigemptyset(x) (void)0
  70#define SA_RESTART 0
  71
  72struct itimerval {
  73        struct timeval it_value, it_interval;
  74};
  75#define ITIMER_REAL 0
  76
  77/*
  78 * sanitize preprocessor namespace polluted by Windows headers defining
  79 * macros which collide with git local versions
  80 */
  81#undef HELP_COMMAND /* from winuser.h */
  82
  83/*
  84 * trivial stubs
  85 */
  86
  87static inline int readlink(const char *path, char *buf, size_t bufsiz)
  88{ errno = ENOSYS; return -1; }
  89static inline int symlink(const char *oldpath, const char *newpath)
  90{ errno = ENOSYS; return -1; }
  91static inline int fchmod(int fildes, mode_t mode)
  92{ errno = ENOSYS; return -1; }
  93static inline pid_t fork(void)
  94{ errno = ENOSYS; return -1; }
  95static inline unsigned int alarm(unsigned int seconds)
  96{ return 0; }
  97static inline int fsync(int fd)
  98{ return _commit(fd); }
  99static inline pid_t getppid(void)
 100{ return 1; }
 101static inline void sync(void)
 102{}
 103static inline uid_t getuid(void)
 104{ return 1; }
 105static inline struct passwd *getpwnam(const char *name)
 106{ return NULL; }
 107static inline int fcntl(int fd, int cmd, ...)
 108{
 109        if (cmd == F_GETFD || cmd == F_SETFD)
 110                return 0;
 111        errno = EINVAL;
 112        return -1;
 113}
 114/* bash cannot reliably detect negative return codes as failure */
 115#define exit(code) exit((code) & 0xff)
 116
 117/*
 118 * simple adaptors
 119 */
 120
 121static inline int mingw_mkdir(const char *path, int mode)
 122{
 123        return mkdir(path);
 124}
 125#define mkdir mingw_mkdir
 126
 127#define WNOHANG 1
 128pid_t waitpid(pid_t pid, int *status, int options);
 129
 130#define kill mingw_kill
 131int mingw_kill(pid_t pid, int sig);
 132
 133#ifndef NO_OPENSSL
 134#include <openssl/ssl.h>
 135static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 136{
 137        return SSL_set_fd(ssl, _get_osfhandle(fd));
 138}
 139#define SSL_set_fd mingw_SSL_set_fd
 140
 141static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 142{
 143        return SSL_set_rfd(ssl, _get_osfhandle(fd));
 144}
 145#define SSL_set_rfd mingw_SSL_set_rfd
 146
 147static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 148{
 149        return SSL_set_wfd(ssl, _get_osfhandle(fd));
 150}
 151#define SSL_set_wfd mingw_SSL_set_wfd
 152#endif
 153
 154/*
 155 * implementations of missing functions
 156 */
 157
 158int pipe(int filedes[2]);
 159unsigned int sleep (unsigned int seconds);
 160int mkstemp(char *template);
 161int gettimeofday(struct timeval *tv, void *tz);
 162struct tm *gmtime_r(const time_t *timep, struct tm *result);
 163struct tm *localtime_r(const time_t *timep, struct tm *result);
 164int getpagesize(void);  /* defined in MinGW's libgcc.a */
 165struct passwd *getpwuid(uid_t uid);
 166int setitimer(int type, struct itimerval *in, struct itimerval *out);
 167int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 168int link(const char *oldpath, const char *newpath);
 169
 170/*
 171 * replacements of existing functions
 172 */
 173
 174int mingw_unlink(const char *pathname);
 175#define unlink mingw_unlink
 176
 177int mingw_rmdir(const char *path);
 178#define rmdir mingw_rmdir
 179
 180int mingw_open (const char *filename, int oflags, ...);
 181#define open mingw_open
 182
 183int mingw_fgetc(FILE *stream);
 184#define fgetc mingw_fgetc
 185
 186FILE *mingw_fopen (const char *filename, const char *otype);
 187#define fopen mingw_fopen
 188
 189FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 190#define freopen mingw_freopen
 191
 192int mingw_fflush(FILE *stream);
 193#define fflush mingw_fflush
 194
 195char *mingw_getcwd(char *pointer, int len);
 196#define getcwd mingw_getcwd
 197
 198char *mingw_getenv(const char *name);
 199#define getenv mingw_getenv
 200
 201int mingw_gethostname(char *host, int namelen);
 202#define gethostname mingw_gethostname
 203
 204struct hostent *mingw_gethostbyname(const char *host);
 205#define gethostbyname mingw_gethostbyname
 206
 207void mingw_freeaddrinfo(struct addrinfo *res);
 208#define freeaddrinfo mingw_freeaddrinfo
 209
 210int mingw_getaddrinfo(const char *node, const char *service,
 211                      const struct addrinfo *hints, struct addrinfo **res);
 212#define getaddrinfo mingw_getaddrinfo
 213
 214int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 215                      char *host, DWORD hostlen, char *serv, DWORD servlen,
 216                      int flags);
 217#define getnameinfo mingw_getnameinfo
 218
 219int mingw_socket(int domain, int type, int protocol);
 220#define socket mingw_socket
 221
 222int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 223#define connect mingw_connect
 224
 225int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 226#define bind mingw_bind
 227
 228int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 229#define setsockopt mingw_setsockopt
 230
 231int mingw_shutdown(int sockfd, int how);
 232#define shutdown mingw_shutdown
 233
 234int mingw_listen(int sockfd, int backlog);
 235#define listen mingw_listen
 236
 237int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 238#define accept mingw_accept
 239
 240int mingw_rename(const char*, const char*);
 241#define rename mingw_rename
 242
 243#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 244int mingw_getpagesize(void);
 245#define getpagesize mingw_getpagesize
 246#endif
 247
 248struct rlimit {
 249        unsigned int rlim_cur;
 250};
 251#define RLIMIT_NOFILE 0
 252
 253static inline int getrlimit(int resource, struct rlimit *rlp)
 254{
 255        if (resource != RLIMIT_NOFILE) {
 256                errno = EINVAL;
 257                return -1;
 258        }
 259
 260        rlp->rlim_cur = 2048;
 261        return 0;
 262}
 263
 264/*
 265 * Use mingw specific stat()/lstat()/fstat() implementations on Windows.
 266 */
 267#define off_t off64_t
 268#define lseek _lseeki64
 269
 270/* use struct stat with 64 bit st_size */
 271#ifdef stat
 272#undef stat
 273#endif
 274#define stat _stati64
 275int mingw_lstat(const char *file_name, struct stat *buf);
 276int mingw_stat(const char *file_name, struct stat *buf);
 277int mingw_fstat(int fd, struct stat *buf);
 278#ifdef fstat
 279#undef fstat
 280#endif
 281#define fstat mingw_fstat
 282#ifdef lstat
 283#undef lstat
 284#endif
 285#define lstat mingw_lstat
 286
 287#ifndef _stati64
 288# define _stati64(x,y) mingw_stat(x,y)
 289#elif defined (_USE_32BIT_TIME_T)
 290# define _stat32i64(x,y) mingw_stat(x,y)
 291#else
 292# define _stat64(x,y) mingw_stat(x,y)
 293#endif
 294
 295int mingw_utime(const char *file_name, const struct utimbuf *times);
 296#define utime mingw_utime
 297
 298pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 299                     const char *dir,
 300                     int fhin, int fhout, int fherr);
 301int mingw_execvp(const char *cmd, char *const *argv);
 302#define execvp mingw_execvp
 303int mingw_execv(const char *cmd, char *const *argv);
 304#define execv mingw_execv
 305
 306static inline unsigned int git_ntohl(unsigned int x)
 307{ return (unsigned int)ntohl(x); }
 308#define ntohl git_ntohl
 309
 310sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 311#define signal mingw_signal
 312
 313int mingw_raise(int sig);
 314#define raise mingw_raise
 315
 316/*
 317 * ANSI emulation wrappers
 318 */
 319
 320int winansi_fputs(const char *str, FILE *stream);
 321int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 322int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 323#define fputs winansi_fputs
 324#define printf(...) winansi_printf(__VA_ARGS__)
 325#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 326
 327/*
 328 * git specific compatibility
 329 */
 330
 331#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 332#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 333static inline char *mingw_find_last_dir_sep(const char *path)
 334{
 335        char *ret = NULL;
 336        for (; *path; ++path)
 337                if (is_dir_sep(*path))
 338                        ret = (char *)path;
 339        return ret;
 340}
 341#define find_last_dir_sep mingw_find_last_dir_sep
 342#define PATH_SEP ';'
 343#define PRIuMAX "I64u"
 344#define PRId64 "I64d"
 345
 346void mingw_open_html(const char *path);
 347#define open_html mingw_open_html
 348
 349/*
 350 * helpers
 351 */
 352
 353char **make_augmented_environ(const char *const *vars);
 354void free_environ(char **env);
 355
 356/*
 357 * A critical section used in the implementation of the spawn
 358 * functions (mingw_spawnv[p]e()) and waitpid(). Intialised in
 359 * the replacement main() macro below.
 360 */
 361extern CRITICAL_SECTION pinfo_cs;
 362
 363/*
 364 * A replacement of main() that ensures that argv[0] has a path
 365 * and that default fmode and std(in|out|err) are in binary mode
 366 */
 367
 368#define main(c,v) dummy_decl_mingw_main(); \
 369static int mingw_main(c,v); \
 370int main(int argc, char **argv) \
 371{ \
 372        extern CRITICAL_SECTION pinfo_cs; \
 373        _fmode = _O_BINARY; \
 374        _setmode(_fileno(stdin), _O_BINARY); \
 375        _setmode(_fileno(stdout), _O_BINARY); \
 376        _setmode(_fileno(stderr), _O_BINARY); \
 377        argv[0] = xstrdup(_pgmptr); \
 378        InitializeCriticalSection(&pinfo_cs); \
 379        return mingw_main(argc, argv); \
 380} \
 381static int mingw_main(c,v)
 382
 383/*
 384 * Used by Pthread API implementation for Windows
 385 */
 386extern int err_win_to_posix(DWORD winerr);